Watch Stops: Pre-SIHH 2012 – Parmigiani Unveils Tonda Annual Calendar

Making the 17th movement unveiled by this still very young (but incredibly experienced) watch brand, Parmigiani’s new Tonda Annual calendar is based on the brand’s PF331 automatic movement, but incorporates an additional module to create the PF 339 Annual Calendar, which automatically accounts for the variation in the number of days in each month. Remember—it…

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